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  • 77701-076
  • 77701-076 Flow Diagram.
  • 4L60E Case Example
  • 700 - 700R4 - 4L60 Case Example

700R4 4L60 4L60E Sonnax 77701-076 2nd Gear Servo Release Check Valve

$16.99
SKU:
77701-076
Condition:
New
Weight:
0.30 LBS
Shipping:
Calculated at checkout
Quantity:

Product Description

700 700R4 4L60 4L60E 4L65E 4L70E New Sonnax 77701-076 Servo Release "Check Valve".

 This Listing Is For:

    (1) One Sonnax 77701-076 Check Valve Kit Only
    Transmission Case Is Not Included!!!!!



This Check Valve Will Fit These Automatic Transmissions;


GMC    Chevy    Buick    Cadillac    Pontiac    Oldsmobile

 

    700R4 1982-on
    4L60 1987-1993
    4L60E 1993-on
    4L65E 2001-on
    4L70E

Note: This "Check Valve Must Be Used With The OEM Valve And Some Drilling May Be Needed.

Complaint;

    Reduced 3-4 Clutch Life

    Secondary Complaints
    • Poor 2-3 Shift Feel
    • 3-2 Tie-up


Cause:

    Inadequate Metering Of The 2nd Band Servo Release Oil.


Correction:

    This Part Combines An Orifice With A Ball Check Valve To Meter Servo Release Oil.


Sonnax Part Summary
Technicians Would Like To Find A Way To Successfully Extend The Life Of 3-4 Clutches, And Improve The 2-3 Shift Feel. They Have Been Trying, With Limited Success,
Since The 700-R4 Transmission Was First Introduced.
Inadequate Metering Of 2nd Gear Band Servo Release Oil Causes 3-4 Clutch Failure. The 3-4 Clutch And 2nd Gear Band Are Not Properly Synchronized.
Sonnax Has Now Developed A Unique Solution That Combines An Orifice With A Ball Check Valve And Solves These Problems.


Features & Benefits
• Improved Design Meters Servo Release Oil, Reducing 3-4 Clutch Failure.
• Provides Sufficient Exhaust So That 3-2 Downshifts Are Smooth.
• Calibrates 3-4 Clutch Feed Orifice Without Creating Shift Concerns.

Please Make Sure Of Your Year Before Ordering, Any Questions Please Call 1-888-8CT-POWR (1-888-828-7697)

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